Benchmark cool companions: ages and abundances for the PZ Telescopii system

@article{Jenkins2011BenchmarkCC,
  title={Benchmark cool companions: ages and abundances for the PZ Telescopii system},
  author={James S Jenkins and Ya. V. Pavlenko and O. M. Ivanyuk and Jos{\'e} A. Gallardo and M. I. Jones and Avril C. Day-Jones and Hugh R A Jones and Mar'ia Teresa Ruiz and David J. Pinfield and Larisa A. Yakovina},
  journal={Monthly Notices of the Royal Astronomical Society},
  year={2011},
  volume={420},
  pages={3587-3598}
}
We present new ages and abundance measurements for the pre-main-sequence star PZ Telescopii (more commonly known as PZ Tel). PZ Tel was recently found to host a young and low-mass companion. Such companions, whether they are brown dwarfs or planetary systems, can attain benchmark status by detailed study of the properties of the primary, and then evolutionary and bulk characteristics can be inferred for the companion. Using Fibre-fed Extended Range Optical Spectrograph spectra, we have measured… Expand
First spectroscopic observations of the substellar companion of the young debris disk star PZ Telescopii
Context. In 2010 a substellar companion to the solar analog pre-main sequence star PZ Tel and member of the approximately 12 Myr old β Pic moving group was found by high-contrast direct imagingExpand
New observations of the PZ Tel system, its substellar companion and debris disc⋆
We present follow-up high-contrast imaging data of PZ Tel B, the substellar companion of a solar analogue pre-main-sequence star and member of the approximately 12-Myr-old β Pic moving group. BetweenExpand
Detection of Hα emission from PZ Telescopii B using SPHERE/ZIMPOL
Hα is a powerful tracer of accretion and chromospheric activity, which has been detected in the case of young brown dwarfs and even recently in planetary mass companions (e.g. PDS70 b and c). HαExpand
Astrometric follow-up observations of directly imaged sub-stellar companions to young stars and brown dwarfs
The formation of massive planetary or brown dwarf companions at large projected separations from their host star is not yet well understood. In order to put constraints on formation scenarios weExpand
MIRACLES: atmospheric characterization of directly imaged planets and substellar companions at 4–5 μm
Directly imaged planets and substellar companions are key targets for the characterization of self-luminous atmospheres. Their photometric appearance at 4-5 $\mu$m is sensitive to the chemicalExpand
First light of the VLT planet finder SPHERE II. The physical properties and the architecture of the young systems PZ Telescopii and HD 1160 revisited
Context. The young systems PZ Tel and HD 1160, hosting known low-mass companions, were observed during the commissioning of the new planet finder of the Very Large Telescope (VLT) SPHERE with severalExpand
Spectroscopic confirmation of M-dwarf candidate members of the Beta Pictoris and AB Doradus Moving Groups
Optical spectroscopic observations are reported for 24 and 23, nearby, proper-motion-selected M-dwarf candidate members of the Beta Pictoris and AB Doradus moving groups (BPMG and ABDMG). UsingExpand
Direct Imaging discovery of a second planet candidate around the possibly transiting planet host CVSO 30
We surveyed the 25 Ori association for direct-imaging companions. This association has an age of only few million years. Among other targets, we observed CVSO 30, which has recently been identifiedExpand
On the age of the β Pictoris moving group
Jeffries & Binks (2014) and Malo et al. (2014) have recently reported Li depletion boundary (LDB) ages for the {\beta} Pictoris moving group (BPMG) which are twice as old as the oft-cited kinematicExpand
A dusty M5 binary in the β Pictoris moving group
We report the identification of a new wide separation binary (LDS 5606) in the ~20 Myr-old beta Pic moving group. This M5+M5 pair has a projected separation of 26'', or ~1700 AU at a distance of 65Expand
...
1
2
...

References

SHOWING 1-10 OF 84 REFERENCES
Direct detection of a substellar companion to the young nearby star PZ Telescopii
Aims. We study the formation of substellar objects (exoplanets and brown dwarfs) that are companions to young nearby stars. Methods. With high-contrast AO imaging obtained with NACO at ESO VLT, weExpand
THE GEMINI NICI PLANET-FINDING CAMPAIGN: DISCOVERY OF A CLOSE SUBSTELLAR COMPANION TO THE YOUNG DEBRIS DISK STAR PZ Tel*
We report the discovery of a tight substellar companion to the young solar analog PZ Tel, a member of the β Pic moving group observed with high-contrast adaptive optics imaging as part of the GeminiExpand
Chromospheric activities and kinematics for solar type dwarfs and subgiants : analysis of the activity distribution and the AVR
Aims. In this work we present chromospheric activity indices, kinematics, radial-velocities, and rotational velocities for more than 850 FGK-type dwarfs and subgiant stars in the southern hemisphereExpand
The Planet-Metallicity Correlation
We have recently carried out spectral synthesis modeling to determine Teff, log g, v sin i, and [Fe/H] for 1040 FGK-type stars on the Keck, Lick, and Anglo-Australian Telescope planet searchExpand
Discovery of a Wide Substellar Companion to a Nearby Low-Mass Star
We report the discovery of a wide (135 ± 25 AU), unusually blue L5 companion, 2MASS J17114559+4028578, to the nearby M4.5 dwarf G203-50 as a result of a targeted search for common proper motion pairsExpand
NACO-SDI imaging of known companion host stars from the AAPS and Keck planet search surveys
Context. Direct imaging of brown dwarfs as companions to solar-type stars can provide a wealth of well-constrained data to “benchmark” the physics of such objects, since quantities like metallicityExpand
Hokupa'a-gemini discovery of two ultracool companions to the young star hd 130948
We report the discovery of two faint ultracool companions to the nearby (d ~ 17.9 pc) young G2 V star HD 130948 (HR 5534, HIP 72567) using the Hokupa'a adaptive optics (AO) instrument mounted on theExpand
A Long-lived Accretion Disk around a Lithium-depleted Binary T Tauri Star
We present a high-dispersion optical spectrum of St 34 and identify the system as a spectroscopic binary with components of similar luminosity and temperature (both M3 ± 0.5). Based on kinematics,Expand
Brown Dwarf Companions to G-Type Stars. I. Gliese 417B and Gliese 584C
We present astrometric and spectroscopic observations confirming that two nearby G dwarf systems (Gliese 417 = BD+36°2162 and Gliese 584AB = η CrB AB) have a widely separated, L dwarf, substellarExpand
51 Eridani and GJ 3305: A 10-15 Myr old Binary Star System at 30 Parsecs
Following the suggestion of Zuckerman and coworkers, we consider the evidence that 51 Eri (spectral type F0) and GJ 3305 (M0), historically classified as unrelated main-sequence stars in the solarExpand
...
1
2
3
4
5
...